# CVE-2018-11684: liblouis: Liblouis is an open source braille translator and back-translator named in honor of Louis Braille

CVE-2018-11684 is fixed in 6 products on 1 platform, first by liblouis-bin 3.5.0-1ubuntu0.2, released June 3, 2018. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2018-11684
- Priority: High
- CVSS: 8.8 (Moderate)
- EPSS: 0.0220
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 3, 2018

## Description

Liblouis is an open source braille translator and back-translator named in honor of Louis Braille. It features support for computer and literary braille, supports contracted and uncontracted translation for many languages and has support for hyphenation. New languages can easily be added through tables that support a rule or dictionary based approach. Liblouis also supports math braille (Nemeth and Marburg).  Security Fix(es):  * liblouis: Stack-based buffer overflow in function includeFile in compileTranslationTable.c (CVE-2018-11684)  * liblouis: Stack-based buffer overflow in function compileHyphenation in compileTranslationTable.c (CVE-2018-11685)  * liblouis: Segmentation fault in logging.c:lou_logPrint() (CVE-2018-11577)  * liblouis: Stack-based buffer overflow in compileTranslationTable.c (CVE-2018-12085)  For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.  Additional Changes:  For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.2 Release Notes linked from the References section.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | liblouis RHEL 8 | 0:2.6.2-21.el8 | [RHSA-2020:1708](https://patchblox.com/security/data/fix/linux/rhsa-2020-1708.md) | Apr 28, 2020 |
| Linux | liblouis ol 8 | 0:2.6.2-21.el8 | [ELSA-2020-1708](https://patchblox.com/security/data/fix/linux/elsa-2020-1708.md) | May 5, 2020 |
| Linux | liblouis-bin Ubuntu 18.04.6 LTS (bionic) | 3.5.0-1ubuntu0.2 | [liblouis-bin 3.5.0-1ubuntu0.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-liblouis-bin-3.5.0-1ubuntu0.2.md) | Jun 3, 2018 |
| Linux | liblouis-data Ubuntu 18.04.6 LTS (bionic) | 3.5.0-1ubuntu0.2 | [liblouis-data 3.5.0-1ubuntu0.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-liblouis-data-3.5.0-1ubuntu0.2.md) | Jun 3, 2018 |
| Linux | liblouis14 Ubuntu 18.04.6 LTS (bionic) | 3.5.0-1ubuntu0.2 | [liblouis14 3.5.0-1ubuntu0.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-liblouis14-3.5.0-1ubuntu0.2.md) | Jun 3, 2018 |
| Linux | python-louis Ubuntu 18.04.6 LTS (bionic) | 3.5.0-1ubuntu0.2 | [python-louis 3.5.0-1ubuntu0.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-python-louis-3.5.0-1ubuntu0.2.md) | Jun 3, 2018 |
| Linux | python3-louis RHEL 8 | 0:2.6.2-21.el8 | [RHSA-2020:1708](https://patchblox.com/security/data/fix/linux/rhsa-2020-1708.md) | Apr 28, 2020 |
| Linux | python3-louis Ubuntu 18.04.6 LTS (bionic) | 3.5.0-1ubuntu0.2 | [python3-louis 3.5.0-1ubuntu0.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-python3-louis-3.5.0-1ubuntu0.2.md) | Jun 3, 2018 |
| Linux | python3-louis ol 8 | 0:2.6.2-21.el8 | [ELSA-2020-1708](https://patchblox.com/security/data/fix/linux/elsa-2020-1708.md) | May 5, 2020 |

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Data as of 2026-11-07T12:40:37Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo